client: store TCP ports in transport
client: store TCP ports in transport

Store the TCP ports in the transport when we are doing RTSP over TCP.
This way, we can easily get to the ports from the transport.

Fixes https://bugzilla.gnome.org/show_bug.cgi?id=729776

hsteinhaus/gst-rtsp-server,surround-io/gst-rtsp-server,hsteinhaus/gst-rtsp-server,Lachann/gst-rtsp-server,barisdemiray/gst-rtsp-server,surround-io/gst-rtsp-server,hsteinhaus/gst-rtsp-server,thaytan/gst-rtsp-server,barisdemiray/gst-rtsp-server,barisdemiray/gst-rtsp-server,thaytan/gst-rtsp-server,thaytan/gst-rtsp-server,Lachann/gst-rtsp-server,surround-io/gst-rtsp-server,Lachann/gst-rtsp-server